Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Opal from
Thacker Pass deposit, McDermitt Caldera Center, Humboldt County, Nevada, USA


Locality type:Deposit
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Thacker Pass deposit, McDermitt Caldera Center, Humboldt County, Nevada, USA
Data Identifiers
Mindat Occurrence Record ID:1344735
Long-form Identifier:1:3:1344735:3
GUID (UUID V4):0
Nearest other occurrences of Opal
24.1km (15.0 miles) ⓘOld Man Spring Prospect, Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA
30.8km (19.1 miles) ⓘCordero Mine, Opalite Mining District, Humboldt County, Nevada, USA
30.8km (19.1 miles) ⓘDisaster Peak property (Nevada Cinnabar Group; Bretchell Mercury Deposit), Disaster Mining District, Montana Mountains, Humboldt County, Nevada, USA
31.6km (19.6 miles) ⓘMcDermitt Mine, Opalite Mining District, Humboldt County, Nevada, USA
38.9km (24.2 miles) ⓘAurora Uranium Prospect, Opalite Mining District (McDermitt Mining District), Malheur County, Oregon, USA
40.8km (25.4 miles) ⓘSleeper mine, Awakening Mining District, Humboldt County, Nevada, USA
42.8km (26.6 miles) ⓘBuckskin Mountain, National Mining District, Humboldt County, Nevada, USA
43.9km (27.3 miles) ⓘBuckskin National mine, Buckskin Mountain, National Mining District, Humboldt County, Nevada, USA
58.2km (36.2 miles) ⓘAllied Group Nos. 1-22, Humboldt County, Nevada, USA
61.6km (38.3 miles) ⓘDouble Link Occurrence, Pueblo Mining District (Denio Mining District), Harney County, Oregon, USA
References
Castor, S.B.
Henry, C.D. (2020) Lithium-Rich Claystone in the McDermitt Caldera, Nevada, USA: Geologic, Mineralogical, and Geochemical Characteristics and Possible Origin. Minerals 10, 68.
 
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